Crocodilians are among the most ancient reptile groups, surviving largely unchanged for over 80 million years. Their welfare in captivity requires understanding their unique thermoregulation, feeding, and spatial needs.
Crocodilian welfare in captivity is often overlooked because these animals are perceived as primitive and unfeeling. Research suggests otherwise — they show individual variation, curiosity, and what appears to be play behavior. Welfare concerns in captive settings include inadequate thermal gradients preventing proper thermoregulation, insufficient water depth and quality, inappropriate social groupings causing injury, and monotonous environments that fail to engage natural hunting and exploration behaviors. Best practice involves large, naturalistic enclosures with temperature variation, appropriate water systems, and feeding enrichment that engages their natural ambush and feeding behaviors.